A recent investigation has uncovered a significant discrepancy between official counts and actual deaths from heat in the U.S. The investigation, which spanned two years, reveals that heat-related deaths are more frequent than previously thought.

The reasons behind this hidden toll are explored, along with potential ways to save lives. Further details on the investigation's findings are available.

The investigation's results highlight the need for a closer look at heat-related deaths and their causes, with the goal of preventing such tragedies in the future.